Answer:
the value of the boltzman constant 8.61 73303 into 10 ratio by - 5 EV upon knev
PART A)
Impulse is defined as change in momentum
here finally after hitting the wall car comes to rest
So final momentum of the car will be ZERO
Initial momentum of the car is given as
here m = 2000 kg
v = 77 m/s
now we have
so here impulse will be
PART B)
As we know that force of impact is defined as
so here it is ratio of impulse and time
so if we increase the time of impact by 3 times
so the force will be decrease by factor of 1/3
so here force is decreased by 1/3
Answer:
thx for the points \( ̄︶ ̄*\))
Explanation:
<span>Velocity is a vector quantity, that's formally defined as the rate of change of position or displacement with time. When stating any vector like the velocity of an object, we talk about direction, as well as magnitude. That's why speed and velocity are different things. Speed is a scalar (a pure number, specified by magnitude, without direction), while velocity is a vector. To put it simply, speed is the magnitude of the velocity. When talking about velocity, we specify it according to some fixed frame of reference and its unit is meters/second. It can be measured in two ways. One is in the form of average velocity, while the other is instantaneous velocity. The formula for the former is as follows.</span>